PHP implements high-concurrency processing and load balancing solution for Baidu Wenxinyiyan interface

PHP implements a high-concurrency processing and load balancing solution for Baidu Wenxin Yiyan interface

Overview:

With the development of Web applications, High concurrency processing and load balancing have become important issues in server-side development. In this article, we will introduce how to use PHP to implement high-concurrency processing and load balancing solutions for Baidu Wenxin Yiyan interface.

Baidu Wenxin Yiyan interface is a very commonly used interface, used to obtain random inspirational, philosophical and other sentences. In high concurrency situations, simply using PHP's file_get_contents function to request the interface may cause the server to be blocked for a long time, affecting the access speed of other users. Therefore, we need to consider asynchronous processing and load balancing of requests to improve the concurrent processing capabilities of the system.

Implementation steps:

1. Use PHP's curl_multi_init function to create a curl multi-handle object for initiating multiple concurrent requests at the same time.
2. Use the curl_multi_add_handle function to add multiple curl handles to a multi-handle object.
3. Use the curl_multi_exec function to execute concurrent requests in multiple handle objects. In the completion callback function of each request, the return result of the request can be obtained.
4. Use the curl_multi_remove_handle function to remove the completed request handle from the multi-handle object.
5. Use the curl_multi_close function to close multiple handle objects.

Sample code:

// Baidu Wenxin Yiyan interface address
$url = 'https://v1. hitokoto.cn/';

//Number of concurrent requests
$requestsNum = 10;

//Initialize curl multi-handle object
$multiCurl = curl_multi_init();

// Create multiple concurrent request handles
$handles = [];
for ($i = 0; $i

$handles[$i] = curl_init($url);
curl_setopt($handles[$i], CURLOPT_RETURNTRANSFER, true);
curl_setopt($handles[$i], CURLOPT_TIMEOUT, 10);
curl_multi_add_handle($multiCurl, $handles[$i]);

}

//Execute concurrent requests
$running = null;
do {

curl_multi_exec($multiCurl, $running);
// 可以在这里判断$running的值，如果为0表示所有请求已完成

} while ($running > 0);

// Obtain and process the return results of each request
$results = [];
for ($i = 0; $i < $requestsNum; $i ) {

$result = curl_multi_getcontent($handles[$i]);
if ($result) {
    $results[$i] = json_decode($result, true);
} else {
    $results[$i] = '请求失败';
}
curl_multi_remove_handle($multiCurl, $handles[$i]);
curl_close($handles[$i]);

}

// Close multi-handle object
curl_multi_close($multiCurl);

// Print results
foreach ($results as $index => $result) {

echo '请求' . ($index + 1) . '：' . $result . PHP_EOL;

}

?>

The implementation of load balancing depends on the upper server cluster environment, which can be achieved through Nginx reverse proxy or load balancing software. Specific load balancing configuration and instructions are beyond the scope of this article, readers can refer to relevant materials. After using load balancing, concurrent requests can be evenly distributed to multiple back-end servers to improve concurrent processing capabilities and system stability.

Summary:

By using PHP's curl_multi_init function and curl_multi_exec function, high concurrency processing of Baidu Wenxin Yiyan interface can be achieved. At the same time, combined with load balancing configuration, the performance and stability of the system can be further improved. In actual development, it can be adjusted and optimized according to specific circumstances to meet the needs of the project. I hope this article will help everyone understand and practice high concurrency processing and load balancing solutions.

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